Subgrid Orograph for Gravity Wave Parameterization

[WHY]

Dear members,
We need subgrid orography data (e.g. var, con, oa1, oa2, oa3, oa4 ...) to test gravtiy wave parameterization.
Does anyone know how to calculate them from the original orography data?
Your assistance would be greatly appreciated!

 

[Ming Chen]

Unfortunately we don't have the program to calculate subgrid orographic data. However, the code from NCEP may provide a good reference for you to calculate these variables. Please see

https://www.nco.ncep.noaa.gov/pmb/codes/nwprod/aqm.v7.0.10/sorc/UFS_UTILS/sorc/orog_mask_tools.fd/orog_gsl.fd/module_gsl_oro_data_lg_scale.f90